LOS ANGELES, Sept. 15 — Charles Manson’s first girl friend among the “flower children” of the Haight-Ashbury and the mother of his young son was indicted on a murder charge yesterday by the County Grand Jury.

The Grand Jury, following an hour-long hearing, returned the indictment against Mary Brunner 27, who is in custody in connection with a Hawthorne gun raid and shootout last month.

Miss Brunner, a former librarian at the University of California at Berkeley, was indicted on one count of murder in connection with the 1909 torture killing of musician Gary Hinman.

She also was indicted on four counts of perjury in connection with her testimony in the Hinman case, said Dep. Dist. Atty. Donald Goldsobel, who presented the case to the Grand Jury.

Miss Brunner will be arraigned on the indictment Monday in Superior Court Dept. 100 at the Hall of Justice.

Miss Brunner is the fifth member of Manson’s so-called “family” of hippie nomads to be indicted for Hinman’s murder.

The others are Manson 36, Robert Beausoleil 24, Susan Atkins 23 and Bruce Davis 28.

She testified at Beausoleil’s trial last year, but recanted her story several times. First she said Beausoleil killed Hinman at the musician’s Topanga Canyon home, then claimed he was innocent.

Beausoleil was convicted and condemned to death for Hinman’s murder and is at San Quentin.

Miss Atkins earlier this year pleaded guilty to the killing and was sentenced to life in prison. She is on Death Row at the Frontera Prison for Women for her convictions in the Tate-LaBianca murders, also in 1969.

Manson is standing trial for Hinman’s murder and the alleged slaying of a movie stuntman whose body has never been found. He also is condemned for the Tate-LaBianca killings.

Davis has an appeal pending and has not yet gone to trial. He too is accused of the stuntman’s alleged murder in 1969, along with the death of Hinman.

The slender young Miss Brunner, who several months ago shaved her blonde hair along with other Manson followers, is one of five “family” members accused in the Aug. 21 shootout with police in Hawthorne.

The five allegedly held up a surplus store and were trying to make away with several guns when they were confronted by officers.

Miss Brunner, who was wounded in the hand during the exchange of gunfire, also is accused of the Aug. 13 robbery of a Covina beer distributing firm. Three of her “family” members also are charged in that case.

The two robberies reportedly were part of a plot to free Manson and other cult members on trial.

Miss Brunner will appear along with her co-defendants today before Superior Court Judge William B. Keene for arraignment and plea in connection with the shootout and the Covina robbery.